Alright, in discussion with my band director today, he mentioned (highly recommended) that I should purchase a C trumpet. Specifically because its an orchestral requirement for any trumpet player and that it allows one to better musically develop. As an interested student looking to conservatorial schools, he noted that in his college (U of M), Guilbert Johnson required that all of his students had and played C trumpets. Whats the purpose to having one? Is it a necessary step?